Practice question
Question
For AB(s) <=> A+(aq) + B-(aq) , if Ksp = 4.0 × 10⁻⁸ , what is [B-] in mol/L?
Explanation
Ksp = [A+][B-] = S² = 4.0 × 10⁻⁸ , S = sqrt4.0 × 10⁻⁸ = 2.0 × 10⁻⁴ , so [B-] = 2.0 × 10⁻⁴ M .
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